According to the study, members of Congress posted twice as many times to Twitter as they did on Facebook, though posting on both platforms has "risen substantially and consistently" since the nonpartisan think tank began collecting data five years ago.
Facebook posts and tweets received more than 2 billion combined favorites, likes, or other reactions, according to the study, up from just 356 million during the 114th Congress. Shares and retweets also increased from 110 million in the 114th Congress to 500 million during the 116th Congress.
Democrats dominated the list of members with over 1 million followers
Vermont Sen. Bernie Sanders, an Independent and former candidate for president, had more followers than any other member of Congress with more than 21.7 million followers across Twitter and Facebook at the end of 2020. Data analyzed by Pew shows that in the 116th Congress, Democrats accounted for the majority of members with more than 1 million followers on social media.